Yes, it is cultural, not religious.

Yes, organized prayer before public school sports is acceptable, because it is as much historical and cultural as it is religious. A person who does not believe in prayer does not have to pray along. If most people want to pray, they should have the option. This is what has been traditionally done for years, it shouldn't be stopped because of a few loud dissidents.

Acceptable until there's a majority who disagree

As an Atheist I'm not of the opinion that prayer is necessary AT ALL. That being said Pre-game prayer in public schols before sporting events is acceptable until there is a majority decision that it is not. There is a minority of atheists in communities for the most part. If there is not a majority present who dissaprove of these religious demonstrations then there is no issue. Only when it is found that a majority of atheists outnumber religious people should organized prayer be done away with.

Non Christians need not apply

So my daughter plays on her schools soccer team. She does not feel comfortable with the Christian prayer that is done before each game. She is cast as a none team player by her teammates and the coaches. So when I here the proponents of prayer say just don't participate with the prayer fail to recognize the stigma that goes along with not participating,